Derivative Instruments (Movements out of OCI) (Details) - Foreign currency exchange forward contracts - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Foreign currency transaction gains (losses)	$ 13	$ 20	$ 9
Cost of sales
Derivative [Line Items]
Foreign currency transaction gains (losses)	(12)	5	2
Designated as Hedging Instrument
Derivative [Line Items]
Derivatives used in Net Investment Hedge, Gain (Loss), Reclassified to Earnings, Net of Tax	37
Designated as Hedging Instrument | Other income (expense), net
Derivative [Line Items]
Foreign currency transaction gains (losses)	35	28	14
Not Designated as Hedging Instrument | Other income (expense), net
Derivative [Line Items]
Foreign currency transaction gains (losses)	$ (10)	$ (13)	$ (7)